Path: utzoo!mnetor!uunet!husc6!cmcl2!nrl-cmf!mailrus!umix!honey
From: honey@umix.cc.umich.edu (Peter Honeyman)
Newsgroups: comp.dcom.modems
Subject: Re: YATB
Message-ID: <3830@umix.cc.umich.edu>
Date: 10 Mar 88 14:10:51 GMT
References: <1849@mtunx.ATT.COM>
Reply-To: honey@citi.umich.edu (Peter Honeyman)
Organization: Center for Information Technology Integration, Univ of Michigan
Lines: 19
Keywords: techdoc Telebit questions
UUCP-Path: {uunet,rutgers}!umix!honey


window size doesn't affect trailblazer throughput -- a window size of 1
gives the same performance as 3 or 7.

in fact, the modem converts a request for a large window size into a
request for a window size of 3.  it does this transparently, but you
can watch it happen with -x9 debugging on.

we considered knocking the window size down to 1 in all cases, as this
eliminates the windowing inside the spoof code, but we were unable to
assert unequivocally that all versions of uucp would work with a window
size of 1.  (we tested against a long list of uucp versions, but there
are versions to which we didn't have access.)  we were confident that 3
would work in all cases, so we stuck with that.

so to answer the question, no, you don't need multiple versions of
spoof code to accommodate window size variants, the modem takes care of
that (too!) for you.

	peter